“I’m not a doctor,” Alderson said. “So did those innings contribute to thoracic outlet syndrome? Did they contribute to some other physical circumstance of his? I have no way of knowing. I don’t think anybody does.”
Boras has never definitively linked the injuries to Harvey’s workload in 2015, and did not do so on Friday. But Harvey was 27-18 with a 2.56 earned run average through the World Series, and 9-19 with a 5.93 E.R.A. thereafter. His strikeouts per nine innings plunged from 9.4 to 6.9.